– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Mon 13 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Mon 13 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Mon 13 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 29mm), mostly on Tue afternoon. Becoming colder with a light covering of snow ,mostly falling on Wed morning. Freeze-thaw conditions (max 5°C on Mon night, min -1°C on Wed night). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 4mm), mostly falling on Sun afternoon. Freeze-thaw conditions (max 12°C on Sun morning, min -1°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  |  | | | | |  |  |  | | | |  | |
light rain | mod. rain | heavy rain | light snow | light snow | snow shwrs | some clouds | rain shwrs | rain shwrs | some clouds | rain shwrs | rain shwrs | rain shwrs | cloudy | light rain | light rain | light rain | light rain | heavy rain | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | 2 | 5 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
3 | 7 | 12 | 5 | — | 0.7 | — | 0.3 | 0.9 | — | 0.2 | 0.7 | 0.1 | — | 0.1 | 0.1 | 0.2 | 2 | 11 | |
max °C | 5 | 4 | 4 | 4 | 1 | 2 | -1 | 2 | 4 | 2 | 3 | 5 | 4 | 8 | 10 | 9 | 12 | 11 | 7 |
min °C | 3 | 3 | 3 | 0 | 0 | 1 | -1 | 0 | 3 | -1 | 2 | 4 | 2 | 4 | 10 | 8 | 9 | 9 | 6 |
0 | -1 | -2 | -4 | -2 | 0 | -1 | 0 | 2 | -1 | 2 | 4 | 1 | 3 | 10 | 7 | 8 | 8 | 6 | |
1100 | 1050 | 1050 | 450 | 650 | 800 | 250 | 800 | 1000 | 300 | 950 | 1200 | 1100 | 1850 | 2100 | 2350 | 2400 | 2050 | 1550 | |
Cloud base (m) | 550 | 550 | 550 | 600 | 550 | 550 | 700 | 600 | 650 | 1550 | 650 | 650 | 750 | 650 | 2350 | 1950 | 1800 | 850 | 550 |
 | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — |
 | — | — | 7:57 | — | — | 7:59 | — | — | — | 8:00 | — | — | 8:01 | — | — | 8:02 | — | — | 8:04 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 29mm), mostly on Tue afternoon. Becoming colder with a light covering of snow ,mostly falling on Wed morning. Freeze-thaw conditions (max 5°C on Mon night, min -1°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 4mm), mostly falling on Sun afternoon. Freeze-thaw conditions (max 12°C on Sun morning, min -1°C on Thu night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.